A new Pride watch face discovered in watchOS 4.3.1 is also being unlocked today, using a series of animated strings to create a rainbow on the Apple Watch screen. Outdoor running can now track your rolling mile pace, and will alert you if you're falling behind your desired pace.

watchOS 5 packs in a new way to chat with friends.

There are a wide variety of workout challenges to choose from, including Yoga and Hiking, which are both new to the platform. If you forget to start a workout but the watch senses your movement has increased and your heart rate has gone up, it will retroactively recognize your workout and start tracking it.

Political cartoons: Roseanne, Samantha Bee and more
It's ridiculous to suggest that nobody on the show or at the network knew the comment was offensive until after it hit the air. Yet, TBS is apparently quite comfortable giving Bee nothing more than a mild reprimand as advertisers pull their dollars.

Apple previously warned developers that an upcoming version of watchOS would end compatibility with the first generation of watchOS apps, requiring that apps get updated with at least the three-year-old watchOS 2 SDK. All you'll need to do is send an invitation to a friend, and once they accept it, you can talk whenever you want.

The Walkie-Talkie feature will send a vibration through to the other person's wrist and then play your message, much like a normal walkie talkie would in real life.

Even if you don't appreciate a friendly contest from time to time, you can still benefit from some new activity tracking types and improved measurements in the familiar categories.

In watchOS 5, you no longer have to raise your wrist and say "Hey Siri" to use voice commands. That's a hurdle that kept the watch from being useful for listening to audio, and Apple just made it possible.

Student ID cards are being added to Apple Watch this fall. Siri Shortcuts are also going to be available on watchOS. Siri Shortcuts opens up data channels to third-party apps as well.